Claude Opus 4.1
| Released | 2025-08-05 |
|---|---|
| Price per 1M | $15.00 in · $75.00 out |
| Overall score | 50.5 · rank 108 |
| Context window | 200,000 tokens |
| Provider | Anthropic |
| Weights | Proprietary |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 50.5 | 108 | 19 |
| Overall: Coding | 49.9 | 110 | 10 |
| Overall: Reasoning | 50.0 | 113 | 9 |
| Overall: Agentic work | 50.7 | 109 | 9 |
| Overall: Frontend | 46.1 | 128 | 5 |
| Coding | 51.2 | 109 | 2 |
| Agents | 50.2 | 105 | 3 |
| Reasoning | 52.3 | 96 | 4 |
| Math | 49.0 | 123 | 3 |
| Knowledge | 46.6 | 106 | 2 |
| Frontend | 43.0 | 102 | 1 |
| General | 56.1 | 58 | 2 |
| Multimodal | 49.2 | 76 | 2 |
| Value vs price | −7.4 | 167 |
Configurations
| Configuration | Balanced | Benchmarks |
|---|---|---|
| Unspecified setting | 49.7 ±1.3 | 17 |
| Thinking | 50.3 ±1.9 | 11 |
Evidence
Coding 51.2 ±3.2
| Benchmark | Result | Source | Date |
|---|---|---|---|
| SWE-bench Verified (Epoch run) | 73.4% | Epoch AI | 2026-02-11 |
| LiveCodeBench (Vals run) | 66.5% | Vals AI | 2026-09-01 |
Agents 50.2 ±3.4
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Terminal-Bench 2.0 | 38.0% | Epoch AI | 2025-10-31 |
| DeepResearch Bench | 48.3% | Epoch AI | 2026-11-11 |
| METR 50% Time Horizon | $100 | METR | 2026-11-11 |
| METR task suite | 66.8% | Epoch AI | 2026-11-11 |
Reasoning 52.3 ±3.3
| Benchmark | Result | Source | Date |
|---|---|---|---|
| EnigmaEval | 7.2% | Epoch AI | 2026-11-11 |
| GPQA Diamond | 77.3% | Epoch AI | 2025-08-05 |
| GPQA Diamond (Vals run) | 76.3% | Vals AI | 2026-09-01 |
| SimpleBench | 60.0% | SimpleBench | 2026-11-11 |
| SimpleBench | 60.0% | Epoch AI | 2026-11-11 |
| Mystery Game Puzzles | 21.0% | Epoch AI | 2026-07-25 |
Math 49.0 ±2.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| OTIS Mock AIME 2024-2025 | 68.9% | Epoch AI | 2025-08-05 |
| FrontierMath Tier 4 | 2.4% | Epoch AI | 2026-06-11 |
| FrontierMath Tiers 1-3 | 12.6% | Epoch AI | 2026-06-11 |
| FrontierMath Tiers 1-3 (2025 set) | 7.2% | Epoch AI | 2025-08-05 |
| FrontierMath Tier 4 (2025 set) | 4.2% | Epoch AI | 2025-08-05 |
Knowledge 46.6 ±1.3
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Humanity's Last Exam | 11.5% | Epoch AI | 2026-11-11 |
| MMLU-Pro (Vals run) | 87.9% | Vals AI | 2026-09-01 |
Frontend 43.0 ±3.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| LMArena WebDev | 1,389 | LMArena | 2026-11-10 |
General 56.1 ±3.3
| Benchmark | Result | Source | Date |
|---|---|---|---|
| LMArena Text | 1,450 | LMArena | 2026-11-09 |
| EQ-Bench Longform Creative Writing | 70.5% | EQ-Bench | 2026-11-11 |
Multimodal 49.2 ±2.4
| Benchmark | Result | Source | Date |
|---|---|---|---|
| MMMU-Pro (Vals run) | 77.5% | Vals AI | 2026-09-01 |
| VPCT | 35.0% | Epoch AI | 2026-11-11 |
Results not used in the score
| Benchmark | Result | Source | Why not used |
|---|---|---|---|
| FrontierMath Tiers 1-3 (2025 set) | 5.9% | Epoch AI | A stronger configuration result was used |
| GPQA Diamond | 73.2% | Epoch AI | A stronger configuration result was used |
| GPQA Diamond (Vals run) | 70.0% | Vals AI | A stronger configuration result was used |
| LMArena Text | 1,448 | LMArena | A stronger configuration result was used |
| LiveCodeBench (Vals run) | 64.6% | Vals AI | A stronger configuration result was used |
| METR task suite | 61.6% | Epoch AI | A stronger configuration result was used |
| MMLU-Pro (Vals run) | 87.2% | Vals AI | A stronger configuration result was used |
| MMMU-Pro (Vals run) | 73.7% | Vals AI | A stronger configuration result was used |
| OTIS Mock AIME 2024-2025 | 40.0% | Epoch AI | A stronger configuration result was used |
| Terminal-Bench 2.0 | 36.9% | Epoch AI | A stronger configuration result was used |
| Terminal-Bench 2.0 | 35.1% | Epoch AI | A stronger configuration result was used |
| Terminal-Bench 2.0 | 34.8% | Epoch AI | A stronger configuration result was used |
| VPCT | 33.0% | Epoch AI | A stronger configuration result was used |
Names matched to this model
claude-opus-4-1, claude-opus-4-1-20250805